Instruction Manual alpha-pH 1000
30
9 TECHNICAL
SPECIFICATIONS
pH Range
0.00 to 14.00 pH
Resolution
0.01
pH
Relative Accuracy
+/- 0.01 pH
mV Range
0 to 100.0 % / - 1000 to +1000 mV
Resolution
0.1 % / 1 mV
Relative Accuracy
+/- 1 mV
Temperature
- 9.9 to + 125.0
o
C
Resolution
0.1
o
C
Relative Accuracy
+/- 0.5
o
C
Sensor
Pt 100 /Pt 1000 (jumper selectable)
Temperature Compensation
Auto / manual (reference at 25.0
o
C)
Set-point and Controller Functions
Function (switchable)
limit controller
pulse length/frequency controller
Controller characteristics
proportional controller
Adjustable period with pulse length controller
0.5 to 20 sec.
Adjustable period with pulse frequency controller
60 to 120
pulses/min
Pickup / Dropout delay
0 to 2000 sec.
Switching pH hysteresis
0.1 to 1 pH
Switching ORP hysteresis
1 to 10.0 % / 10 to 100 mV
Contact outputs, controller
2 potential-free change-over contacts
Switching voltage / current / power
max. 250 VAC / max. 3A / max. 600 VA
Alarm Functions
Function (switchable)
Latching / pulse
Wash cycle
0.1 to 199.9 hrs
Wash duration
1 to 1999 s
Pickup delay
0 to 2000 s
Switching voltage / current / power
max. 250 VAC / max. 3A / max. 600 VA
Electrical Data and Connections
Power Requirements
110 / 220 VAC (jumper selectable)
Frequency
48 to 62 Hz
Power requirements
Max. 7 VA
Signal Output
0/4 to 20 mA, galvanically isolated
Load
max. 600
Ω
pH / ORP input
BNC, screw terminals
Connection terminal
Terminal blocks 5-pole / 17-pole, removable
Mains fuse / fine wire fuse
slow-blow 250 V / 100 mA
EMC Specifications
Emissions
According to EN 50081-1
Susceptibility
According to EN 50082-1
Environmental Conditions (For Indoor Use)
Altitude
Up to 2000 m
Maximum Relative Humidity
80% up to 31
o
C decreasing linearly to 50% at 40
o
C
Power Supply
Mains supply voltage fluctuations not exc
10% of the nominal voltage
Transient Overvoltages
Category II
Pollution Degree
Category II
Ambient temp. operating range
-10 to +50
o
C